Enhancement of Nonlinear Optical Phenomena by Localized Resonances,ACS Photonics

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Enhancement of Nonlinear Optical Phenomena by Localized Resonances
ACS Photonics ( IF 6.5 ) Pub Date : 2018-01-20 00:00:00 , DOI: 10.1021/acsphotonics.7b01562
A. Rodríguez Echarri ₁ , Joel D. Cox ₁ , Renwen Yu ₁ , F. Javier García de Abajo _{1,

2}

Affiliation

Nonlinear optics at the nanoscale is severely limited by the small departure of available materials from linear behavior. Despite intense efforts placed into overcoming this problem using multiple strategies for enhancing the near-field light intensity, all-optical active nanodevices remain a challenge. Here we introduce a material-independent scheme for quantifying the enhancement of the nonlinear response in nanostructures assisted by proximal metallic or dielectric nanoresonators. The proposed figures of merit, which we apply to configurations of current interest incorporating 2D materials and dielectric cavities, can be generally used to optimize nonlinear nanoscale elements.

中文翻译：

局部共振增强非线性光学现象

纳米尺度的非线性光学受到可用材料与线性行为的微小偏离的严重限制。尽管已经投入了巨大的努力来使用多种策略来增强近场光强度来克服这个问题，但是全光学有源纳米器件仍然是一个挑战。在这里，我们介绍了一种独立于材料的方案，用于量化由近端金属或介电纳米谐振器辅助的纳米结构中非线性响应的增强。拟议的品质因数（我们将其应用于当前感兴趣的，结合了2D材料和介电腔的配置）通常可以用于优化非线性纳米级元素。

更新日期：2018-01-20

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